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Flight Reliability

WN 3333 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3333 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

72%
Arrive within 15 minutes
9 min
Average arrival delay
0.4%
Cancelled
1 min early
Median arrival delay

Based on 254 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon67%(30 flights)
  • Tue76%(45 flights)
  • Wed73%(48 flights)
  • Thu65%(31 flights)
  • Fri77%(30 flights)
  • Sat90%(38 flights)
  • Sun55%(31 flights)
On-time by departure window
  • 3–6 AM—(8 flights)
  • 6–9 AM100%(22 flights)
  • 12–3 PM85%(26 flights)
  • 3–6 PM80%(51 flights)
  • 6–9 PM61%(129 flights)
  • 9 PM–12 AM65%(17 flights)
On-time trend by month
54%
May

Aug 80% → May 54% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202580%15
September 202582%17
November 202584%37
December 202582%45
January 202682%27
February 202668%19
March 202638%29
April 202685%27
May 202654%26
Departures on time
67%
Diverted
0%
Flights flown
253
Months covered
11

Keep nerding

Based on 254 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.